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Фрагмент инструкции
a sound module, effect unit, sequencer, remote keyboard, as "a system", allowing you to program various combinations of those devices for live performance. To make the best use of the A-50, read this manual carefully. The A-50 can transmit various MIDI messages, but these messages may not function properly if the receiver unit cannot receive them. Read the owner's manual of the receiver unit and the separate booklet "Guide Book for MIDI" together with this manual. ■ IMPORTANT NOTES OPower SupplyO • The appropriate power supply for this unit is shown on its name plate.Please make sure that the line voltage in your country meets the requirement. • Do not use the same socket used for any noise generating device (such as a motor or variable lighting system.) • Make sure that the unit is turned off before connecting the power plug to the AC socket. • Please be sure to connect the power cord to the AC socket on this unit before connecting the power plug to the wall socket. • When disconnecting the power plug from the socket, do not pull the cord but hold the plug to avoid damaging the cord. • Avoid damaging the power cord. • If the unit is not to be used for a long period of time, unplug the cord from the socket. • It is normal for this unit to become hot while being operated. • Check with your local Roland dealer ifyouwis to use this unit in another country. • Disconnect the AC cord immediately in the evei of an electrical storm. • Before setting up this unit with other MIDI devices, turn this unit along with all other unii off. • Be sure to connect the MIDI cables securely. • If the MIDI cable is disconnected while the keyboar is being played,various troubles will occur (e.< the note may continue to sound). • This unit may not operate correctly if turned o immediately after being turned off. If this happen simply turn it off a few seconds later,turn it o again. • To avoid the risk of electric shock, do not perfori any servicing, referall servicing to qualified servic personnel. 1 Room Location ' Avoid using this device in excessive heat or humidity conditions, or where it may be affected by direct sunlight or dust and avoid places subject to high vibration. Operating the unit near a neon light, fluorescent lamp, TV or CRT Display, may cause noise interference. If so, change the angle orthe position of the unit. Operating this unit near a TV or radio may cause picture or noise interference, if this happens, move the unit away from these instruments. Do not place or drop anything heavy on the main jnit or its power cord. Cleaning Care Jse a soft dry cloth for dusting. To remove ingerprints or dulling film, use a soft cloth slightly lampened with water and a little mild detergent, mmediately wipe dry with a soft cloth. Do not use ;olvents, such as paint thinners. Memory Back Up System <\> ‘his unit features a memory back-up system that etainsthe data even after switched off. The battery hat supportes the back-up circuit should be eplaced every five years. Call the Roland service tation for a battery replacement. he first replacement may be required before five sars, depending on how much time had passed afore you purchased the unit.) • Although we do our utmost to protect your data during repairs, sometimes, especially when working onthe memory itself oron a related area, some of your important data may be lost. Keep a separate record of all the data that you consider important. This can be done by saving it into the Memory Card (M-256D,E) or by writing it down on a sheet of paper. OTHERS •Adjust the volume control to a level that will not disturb the neighborhood, especially at night when sounds can travel over a long distance. • Do not allow fluid or foreign matter, such as water, beverages, coins,sand, wires, to enter the A-50. • Do not examine or modify the internal components or circuitry. Electrical shocks or damage may result. • Do not subject this unit to strong shocks, or move it while the power is on. • If this unit fails to operate correctly, turn it off immediately and contactyour local Roland dealer. • Never push or hit the display. 2 ■ PANEL DESCRIPTION Rear Panel Do not remove the cover of the selector switch {for voltage change) on the rear of the unit. To change the positions of the selector switch for the voltage change (it is set to the proper position at the manufacturer), you need the attachment plug or line cord.If you remove the cover and change the positions of the switch without using it, electric shock or fire will occur. To change the positions for voltage change, call your local Roland service station. Patch Shift Sockets(DOWN/UP) -Control Pedal Socketsd, 2, 3 and 4) —. MIDI IN Socket 2(remote) MIDI ¡N Socket 1 — MIDI THRU Socket - MIDI OUT Sockets(1, 2, 3 and 4} - LCD Contrast Knob Selector Switch (for voltage change)- Card Slot • □S-V puepu Receptacle • Power Switch - Cursor Buttons Patch Number Buttons - Group Buttons - Channel But...